This phenomenon of selecting traits associated with youth is known as neoteny, and can be seen in many domestic animals.

这选择与青年有关现象被称为幼态，在许多家畜中都可以看到。

We want to learn and understand, partly to make sense of the world but also because of something called neoteny.

我们要学习和理解，方面是为了理解这个世界，另方面也是因为做“幼态持续”东西。

Scientists think their forever-young condition, called " neoteny, " evolved because of their stable habitat.

科学家们认为，它们永远年轻态，即所谓“幼态”，是由于它们稳定栖息地而进化而来。